The polls leading up to Thursday’s referendum were neck in neck. On the day, a You-Gov poll showed a decisive Remain victory. By the time the count started, Remain had begun to celebrate and Leave was already conceding defeat.

But as soon as results began to pour in it was clear that the support for Brexit was stronger than anyone expected.

At 51.9% to 48.1% Leave won the day. Why, against all odds, did Brexit prevail?